21997528

素因数分解:

$2^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{5381}}^1$

素因数の和:5467

約数の個数: 32

約数和(自身を含む): 47792160

約数和(自身を除く): 25794632

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 73, 146, 292, 511, 584, 1022, 2044, 4088, 5381, 10762, 21524, 37667, 43048, 75334, 150668, 301336, 392813, 785626, 1571252, 2749691, 3142504, 5499382, 10998764, 21997528]

約数ペア:

[(1, 21997528), (2, 10998764), (4, 5499382), (7, 3142504), (8, 2749691), (14, 1571252), (28, 785626), (56, 392813), (73, 301336), (146, 150668), (292, 75334), (511, 43048), (584, 37667), (1022, 21524), (2044, 10762), (4088, 5381)]